Can we talk about setting posts with concrete versus using a foam mix?
I just finished a big vinyl fence job in Charlotte where the client insisted on the foam stuff for the posts, saying it was faster. I've always used concrete, even for vinyl, because I like the solid feel. We did half the fence with each method to compare. After a year, the foam side had two posts that started to wobble in a heavy rainstorm last month, while the concrete side is still rock solid. The foam was quicker to set up, sure, maybe saved us an hour total, but now we have a callback. The concrete mix cost about $15 more for the whole job, but I think it's worth it for the peace of mind. Has anyone else seen a real difference in long-term hold between these two methods?